said by nitzan:CallWithUs actually has 3 locations: west, east and uk. said by PX Eliezer:
I've used Voipo, Vitelity, FlowRoute, CallWithUs, and Localphone, without wondering for a second about that.
My guess is that most of [those] providers don't have it.
Actually most of these providers do
have multiple geo locations.
FlowRoute has servers in Las Vegas and Phoenix.
CallWithUs has servers in California and Michigan.
Vitelity has servers in Dallas and Boston.
Other providers with multiple geo locations: Anveo, Voip.MS, Future Nine